Daomanite Mineral Data + 
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- 2.5.7.1 Daomanite * CuPtAsS2 Ama2 mm2
- II/D.06-10 Kashinite (Ir,Rh)2S3 P bcn 2/m 2/m 2/m
- II/D.06-20 Bowieite (Rh,Ir,Pt)1.77S3 Pnca 2/m 2/m 2/m
- II/D.06-30 Daomanite CuPtAsS2 Ama2 mm2
General Daomanite Information |
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 Chemical Formula: |
CuPtAsS2 | ||
| Composition: |
Molecular Weight = 397.68 gm | ||
| Copper 15.98 % Cu | |||
| Arsenic 18.84 % As | |||
| Platinum 49.05 % Pt | |||
| Sulfur 16.13 % S | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
CuPtAsS2 | ||
| Environment: |
Chalcopyrite-bornite veins in hornblende pyroxenite. | ||
| IMA Status: |
Not Approved IMA 1974 | ||
| Locality: |
Dao and Ma districts, Yanshan, China. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for the locality. | ||
Search for Daomanite Images | |||
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Images:
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Daomanite Crystallography |
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| Axial Ratios: |
a:b:c =0.3686:1:0.2365 | ||
| Cell Dimensions: |
a = 5.852, b = 15.876, c = 3.756, Z = 4; V = 348.96 Den(Calc)= 7.57 | ||
| Crystal System: |
Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: Ama2 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.93(1)(200), 3.29(0.6)(140), 1(0.5)(1.93),1.63(0.5)(1.42), 7.95(0.5)(020), 1.73(0.5)(122), 1.28(0.4)(342), 2.72(0.4)(131), | ||
Physical Properties of Daomanite |
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| Cleavage: |
[100] Good, [001] Distinct, [010] Fair | ||
| Color: |
Gray, Silver gray. | ||
| Density: |
7.03 | ||
| Diaphaniety: |
Opaque | ||
| Fracture: |
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. | ||
| Hardness: |
3.5-4 - Copper Penny-Fluorite | ||
| Luster: |
Metallic | ||
Optical Properties of Daomanite |
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| RL Anisotrophism: |
Strong. | ||
| RL Color: |
Light greenish yellow. | ||
| RL Pleochroism: |
Gold-yellow to grayish green. | ||
Calculated Properties of Daomanite |
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| Electron Density: |
relectron=6.55 gm/cc |
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| Fermion Index |
Fermion Index = 0.16701 Boson Index = 0.83299 |
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| Photoelectric: |
PEDaomanite = 757.40 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Daomanite is Not Radioactive |
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Daomanite Classification |
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| Dana Class: |
2.5.7.1 (2)Sulfides - Including Selenides and Tellurides | ||
| (2.5)where Am Bn Xp, with (m+n):p=3:2 | |||
| (2.5.7)Dana Group | |||
| Strunz Class: |
II/D.06-30 II - Sulfides and sulphosalts | ||
| II/D - Sulfides with metal: sulfur, selenium and tellurium < 1:1, Tellurides with Copper, Silver, Gold | |||
| II/D.06 - Kashinite series | |||
Other Daomanite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(AmMin, Vol 87, p 1513) OPTIC PROP.(AntBidBlaNic1) | ||
| See Also: |
Links to other databases for Daomanite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris Search for Daomanite using: Visit our Advertisers for Daomanite : Translate Daomanite Mineral Data : Ask about Daomanite here : Print or Cut-and-Paste your Daomanite Specimen Label here :
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